Coin-controlled lock.



E. E. DOUGHERTY & U. W. EASTON.

GOIN GONTROLLBD LOOK.

APPLICATION FILED sEPT.1s.1o13

1,105,498. Patented Ju1y 28,1914-J UNITED STATES PATENT OFFICE.

EDWIN E. DOUGHERTY AND UBERTUS W. BASTON, OF INDIANAPOLIS, INDIANA.

COIN-CONTROLLED LOCK.

To all whom it may concern Be it known that we, EDWIN E. DoUeiH :eirrr and Unen'rus W. BAstroN, citizens of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented certain new and useful Improvements in Coin-Controlled Locks, el which the following is a speciiication.

|Ihe object of this invention is to provide an improved coin controlled lock for bath houses, toilet rooms, check rooms, telephone booths and the like.

In order to make our invention fully understood and to enable the same to be earried into practice, we have appended hereto a sheet of drawings upon which our improved coin-operated lock is illustrated.

Figure 1 shows the interior oit our lock vfrom the front, the front plate being removed. The coin is shown in dotted lines in its initial position. The arm carried by the outside knob is shown in 'full line in one extreme position and in dotted lines in its opposite eXtreme position, each of which as well as intermediate positions it is free to assume when not limited bv the presence of a coin. Fig. 2 is a vertical section on the line 2-2 of Fig. 1. Fig. 3 represents the interior of our lock :from the front with the front plate removed as in Fig. 1, but shows a coin inserted and the parts of the lock operated in conjunction therewith to shoot the bolt inwardlyr so as to release the lock. Fig. 4 is a horizontal section on the line 4-4 of Fig. 1. Fig. 5 shows the coin receiving arm of the spindle of the inner knob and smaller cooperating plate, removed 'from the other mechanism oi' the lock, in front elevation. Fig. 6 is an edge view of the same parts shown in Fig. 5. Fig. 7 is a side view oi the coin manipulating arm carried by the outside knob, in the same position as shown in Fig. 2 but detached :from the other parts of the lock and Fig. 8 is a section on the line t-8 oit' Fig. 7.

Like characters oit reference indicate like parts throughout the several views oi the drawing.

In detail, 9 is the lock case which is secured to a door (not shown) `in any usual and suitable manner, and 10 is the front cover of the case. 11 is the locking end or head of the bolt which reeiprocates through a suitable opening in the wall o'l the case and is beveled toward the rear at its outer Specification of Letters Patent.

Application filed September 18, 1913.

Patented July 28, 1914.

serial No. 790,549.

end as shown in Fig. 4:, in the usual manner, to facilitate the closing oi? the door. The head 11 of the bolt is thus guided in its opening in the case; the inner portion oi the bolt is here shown as round in cross section and is considerably reduced to provide room between it and the rear plate of the case for the operation of other elements of the lock, and the inner end of the bolt is held and guided by passing through a suitable opening in a post 12. A {lange-plate 13 is formed on or rigidly secured to the bolt at a position between the post 12 and head 11 equal toa distance :from the post of the maximum projection o'l" the head 11 outside of the ease. The sha'lt 14 is the one on which the outer knob (not shown) is mounted, and mounted upon this sha'lt is a lever 15 which crosses the bolt between the latter and the outer plate 10 and bears against a shoulder in the bolt 'formed by reducing the thickness of the bolt head 1l as shown at 1G (see Figs. E3 and 1). The lever 15 has an inward plate extension 17 extending into contact with the back plate oi the casing 9. This plate 17 has a suitable slot through which the bolt passes in the manner shown in Fig. 7, and at about the thickness of a coin in distance from the inner edge of the plate 17 is an integral plate extension 18 at right angles to the plate 17. The coin 19 by which the lock is operated, is adapted to be received in the space between the back plate o't the case 9 and the plate extension 18. The lever 15 is forced normally against the head of the bolt, the edge of the'lever bearing against shoulder 1G at said, head and its plate 17 against the inner end ot the head, by means of a spring 2O which is wrapped around the hub of lever 15 and has one end oi the spring fastened to the case at the lug Q1. and the opposite end is made to engage the plate 17. By this construction the spring 20 is made to shoot the bolt normally to its outer position. '1`he normal position of the bolt and of the lever 15 is shown in full lines in Fig. 1.

A coin chute 22 provides a depository through the upper end o'l" thc lock 'for a coin by which the lock is to be operated. shape oi the chute directs the coin back against the rear plate oi the ease 9 and deposits it between said back plate and the plaie extension 1S ol.E lever 15 inthe position shown iu dotted lines in Fig. 1. '.llie coin The chute 22 has a lug 23 formed by an extension of its lower front edge. This lug serves as a stop4 to limit the inner throw of the lever l5, and it also limits the throw in an opposite direction of an arm 24. The inne-r knob (not shown) is mounted on a shaft 25, y

upper end of which crosses the bolt bel and the arm 24k is swinginnjly mounted on the shaft 25, the free end of the arm being under the .reduced inner portion of the bolt. The upper and free end of the arm 24 is notched to form a projecting end lug which contacts with the lug),` 23 on the chute 22 when the arm is moved in that direction by pressure against it of the flange-plate 1301i the bolt. The upper end of the `arm 24; is, held away from the back plate of the casing 9 a distance suflicient to receive the coin between it and the casingplate, by a rib eX- tension 2G, as shown.

1When a coin is inserted into the chute 22 and it is delivered by gravity between the plate 17 and lug 26 under the arm 24 and plate extension 18 it is kept from falling` onf through by an adjustable plate 27 hinged to the arm 2l and located between said arm and the back of casino,` 9.. The lower `end of the plate 27 is slotted to receive a lug, or, as here shown, the inner end of a screw 23 from the casing;` 9 so that, when the arm 24; is moved around shaft 25 by pressure from the arm or lever l5 transmitted throuoghl a coin, as shown. in Fig. 3, the plater 27 will be given an independent oscillatory movement around its pivotal connection. 29 with arm 2li. As the coin is moved over by pres.- sure against it of the arml or lever 1.5, or rather by pressure aga-inst it of the plate extension 17 of said arm, the coin soon contacts with the upper end of plate 27 and maintains the proper contact to support the coin regardless of the faster travel of the arm As soon as the coin is released, by thc outward movement of arm or lever 15 through the action of spring 2O when the knob on shaft lis released by the person desiring' to open the door, said coin falls by gravity into the receptacle provided for that purpose at t-he bottom of the lock casing'. rllhe upper end of the arm 24 is required to move farther and therefore faster than would be practicable were it to be relied upon to assist in holding the coi-n, wit-hout the assistance of the plate 27, because said arm 24 is utilized in operating* a counter which registers the number of times the bolt is shot inwardly. As the bolt can only be shot inwardly by the aid of a coin the registration of its inward throws is also a registration of the number of coins deposited in the lock.

llhe counter 30 may be and is of any usual and well known construction having an operating shaft 3l which we have provided with an inwardly projecting' radial arm 32 which crosses the path of the arm 24, so

that when the arm 24 is moved on its shaft 25 by the presence of a coin, as above described, it will contact with the arm 3 2 of the counterl shaft and turn the latter to register an additional one.

Mounted or. the shaft 25 is a lever 33, the

tween the latter and the outer plate 10, and

. the lower end is extended so as to contact with the adjacent wall of the casing to limit the rocking' movement of shaft 25 in one direction. The upper end of the lever 33 will contact with the flange-,plate 13 when the bolt is in its outer shot and locked position to withdraw the bolt by a movement of the shaft 25 in the only direction permitted for said shaft to be rocked, by reason of the lower extension or arm of lever 33 and casing wall. This affords the means by which a person on the inside of the room can unlock the door without the presence of a coin in the lock. ln some coin operated locks the presence of' a coin deposited by an outside person while there is an occupant on the inside of the room interferes with the operation ofthe device so that the one on the inside cannot unlock the door to get out, but by our construction as above described it is impossible for an outsider thus toy interfere with the exit of the person on the inside.

ln order to insure the setting; of the counter in the required position to sho-w the registration correctly and also to enable the next count to be recorded by the mechanism we provide a pin 34E on the lever 33 nea-r its upper end to contact .with an4 arm 35 which .is extended outwardly from the shaft 31 of the counter and is thence bent downwardly across the path of said pin 34.

By this `means, when the lever 33 is moved by the read right in the counter and to receive the next action of the machine in a new count.

lt is believed that the operation of our improved coin lock has been so fully disclosed as the description has progressed that further explanation is unnecessary as to its operation, and while we have described in detail the best embodiment of' our device 1Known to us it is obvious that many variations and changes may be madewithout departing; from the spirit of' our invention; we therefore do not desire to be limited to the exact mechanism shown, but

What we claim as new and wish to secure by Letters Patent of the United States is l. In a coin controlled' lock, a bolt having a head and a shoulder near said head and also having` an inner flange-plate, a knobshaft having an arm bearing against the shoulder of the bolt, said arm forming a part of a coin receptacle, a spring` pressing the arm against the bolt, a second arm forming the remaining part of a coin receptacle pivoted at its lower end and contacting with said flange-plate of the bolt near its upper end and means carried by the second arm to hold the coin in said receptacle.

2. In a coin controlled lock7 a bolt having a head and `a shoulder near said head and also having an inner flange-plate, a knobshaft having an arm bearing against the shoulder of the bolt said arm having plate extensions forming a part of a coin receptacle, a spring pressing the arm against the bolt, a second arm forming the remaining part of a coin receptacle pivoted at its lower end and contacting with said ange-plate of the bolt near its upper end, a plate pivoted to said second arm to hold the coin in said receptacle and a chute to direct the coin t0 said receptacle.

3. In a coin controlled lock, a bolt having a head and a shoulder near said head and also having an inner flange-plate, a knobshaft having an arm bearing against the shoulder of the bolt said arm having plate extensions forming a part of a coin receptacle, a spring pressing the arm against the bolt, a second arm forming the remaining part of a coin receptacle pivoted at its lower end and contacting with said flange-plate of the bolt near its upper end, a plate pivoted to said second arm to hold the coin in said receptacle, a chute to direct the coin to said receptacle, and a stop between the two arms to limit the movement of each arm in the direction of the other arm.

4t. In a coin controlled lock, a bolt having a head and a shoulder near said head and also having an inner flange-plate, a knobshaft having an arm bearing against the shoulder of the bolt said arm having plate extensions forming a part of a coin receptacle, a spring pressing the arm against the bolt, a second arm :forming the remaining part of a coin receptacle pivoted at its lower end and contacting with said flange-plate of the bolt near its upper end when the bolt is in its outer shot position, a counter, means for operating the counter Operated by said second arm when the latter is actuated by said first arm through a co-in `and .a plate pivoted to said second arm to hold the coin in said receptacle during the advance movement of the second arm to operate the counter.

5. In a coin controlled lock, a bolt having a head and a shoulder near said head and also having an inner flange-plate, a knobshaft having an arm bearing against the shoulder of the bolt said .arm having plate extensions forming a part of a coin recelptacle, a spring pressing the arm against t 1e bolt, a second arm forming the remaining part of a coin receptacle contacting with said flange-plate of the bolt near the upper end ol said second arm, a second knob-shaft to which the second arm is pivoted, means carried by the second arm to hold the Coin in said receptacle and a lever on the second knob-shaft contacting with the iange-plate oln the bolt to retract the bolt by rocking the s 1a `t.

(3. In a coin controlled lock, a bolt having a head and a shoulder near said head and also having an inner flange-plate, a knobshaft having an arm bearing against the shoulder of the bolt said arm having plate extensions forming a part of a coin receptacle, a spring pressing the arm against the bolt, a second arm forming the remaining part of a coin receptacle contacting with said fiangeplate of the bolt near the upper end of said second arm, a second knob-shaft to which the second arm is pivoted, a counter, a counter operating means operated by said second arm when the second arm is actuated by said first arm through a coin, a plate pivoted to said second arm to hold the coin in said receptacle during the advance movement of the second arm to operate the counter and a lever on the second knob-shaft contacting with the flange-plate on the bolt to retract the bolt when the second shaft is rocked and means on said lever to engage said counter operating means and reset t 1e counter by said movement of the lever.

In witness whereof, we have hereunto set our hands and seals at Indianapolis, Indiana, this sixth day of September, A. D. one thousand nine hundred `and thirteen.

EDWIN E. DOUGI-IERTY. [n s] UBERTUS W. EASTON. [n s] Witnesses:

W. T. KALN, F. W. I/VonRNnn.

Copies et this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. 0." 

